chromium/chrome/browser/preloading/prerender/prerender_manager.h

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_PRELOADING_PRERENDER_PRERENDER_MANAGER_H_
#define CHROME_BROWSER_PRELOADING_PRERENDER_PRERENDER_MANAGER_H_

#include <string>

#include "components/omnibox/browser/autocomplete_match.h"
#include "content/public/browser/preloading.h"
#include "content/public/browser/prerender_handle.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"
#include "url/gurl.h"

namespace content {
class NavigationHandle;
}

namespace internal {
extern const char kHistogramPrerenderPredictionStatusDefaultSearchEngine[];
extern const char kHistogramPrerenderPredictionStatusDirectUrlInput[];
}  // namespace internal

// If you change this, please follow the process in
// go/preloading-dashboard-updates to update the mapping reflected in dashboard,
// or if you are not a Googler, please file an FYI bug on https://crbug.new with
// component Internals>Preload.
//
// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
//
// LINT.IfChange
enum class PrerenderPredictionStatus { … };
// LINT.ThenChange()

// Manages running prerenders in the //chrome.
// Chrome manages running prerenders separately, as it prioritizes the latest
// prerender requests, while the //content prioritizes the earliest requests.
class PrerenderManager : public content::WebContentsObserver,
                         public content::WebContentsUserData<PrerenderManager> { … };

#endif  // CHROME_BROWSER_PRELOADING_PRERENDER_PRERENDER_MANAGER_H_